SN74LS390NG4

Counter Dividers Overview

The SN74LS390NG4 is a dual four-bit decade counter integrated circuit manufactured by Texas Instruments. It belongs to the 74LS logic family and utilizes Low-power Schottky technology for enhanced performance. The device features two independent counters within a single package, each capable of asynchronous counting. It operates with a supply voltage range of 4.75 V to 5.25 V and supports negative-edge triggering. The component is housed in a 16-pin PDIP package suitable for through-hole mounting.

Counter Dividers Feature Summary

• Dual independent four-bit decade counter architecture
• Asynchronous counting mechanism with negative-edge triggering
• Low-power Schottky (LS) logic technology implementation
• Standard 16-pin plastic dual in-line package configuration

Counter Dividers Applications

• Digital frequency division circuits
• Decimal digit display systems
• Timekeeping and clock generation modules
• General-purpose digital sequence control

Counter Dividers Procurement Notes

Verify the specific 'G4' suffix indicates RoHS compliance and green manufacturing standards as per Texas Instruments documentation. Confirm the package type matches the required PCB footprint. Ensure the operating temperature range aligns with the system environment. Cross-reference the manufacturer part number with authorized distributors to guarantee authenticity and traceability.

Counter Dividers Selection Notes

Select this component when dual independent decade counting is required within a single IC footprint. The LS series offers a balance of speed and power consumption suitable for general TTL applications. Consider the PDIP package for prototyping or through-hole designs. Verify compatibility with existing 5V logic levels and asynchronous reset requirements in the target design.

Counter Dividers Part Context

This part is part of the broader 74LS390 family, which includes variants like SN74LS390N. The 'G4' suffix typically denotes environmental compliance features such as lead-free terminals and halogen-free materials. It serves as a direct replacement for standard SN74LS390 devices where regulatory compliance is mandatory. The device shares functional pinouts with other decade counters in the 74xx series.

Counter Dividers Replacement Considerations

SN74LS390N is the primary non-compliant equivalent. SN74LS390NE4 is the RoHS-compliant alternative with identical electrical characteristics. Verify that substitute parts maintain the same 16-pin PDIP package and asynchronous operation mode.